package com.liao.kv.base;

import org.apache.hadoop.io.WritableComparable;

/*因为mapper的Key写不下去所以才去封装这些类*/
public abstract class BaseDimension implements WritableComparable<BaseDimension> {
    /*key需要进行比较和序列化，所以实现WritableComparable，WritableComparable是继承Writable, Comparable*/
}
